Shu Guang
Shu Guang
Wenzhou Shuguang Fuse Co., Ltd., located in Yueqing, Zhejiang—the renowned "Electrical Capital of China"—stands as a beacon of innovation in the power technology sector. Established in 1992 as "Yueqing Shuguang Fuse Factory," we have evolved over three decades into a comprehensive enterprise integrating R&D, advanced manufacturing, and global distribution.
Our commitment to excellence has earned us the designation by the Ministry of Electric Power Industry to produce high-voltage fuses, current-limiting devices, and protection equipment for power capacitors. We don't just manufacture; we engineer safety for the world's most critical power infrastructures.
The global demand for high-reliability circuit protection is surging. As nations transition to Smart Grids and decentralized energy, the traditional fuse is evolving. Modern "EFuses" or electronic fuses are becoming vital in low-voltage electronics, while our high-voltage HRC and current-limiting fuses remain the bedrock of grid stability across Europe, the Americas, and Asia.
Three core trends are shaping the future: Miniaturization, Higher Breaking Capacity, and Digital Integration. Industrial automation requires fuses that can handle extreme thermal stress while providing instantaneous cut-off. We are currently developing next-generation protection that aligns with Industry 4.0 standards, ensuring minimal downtime for automated factories.
Solar and wind farms require specialized DC fuses and high-voltage protection to manage fluctuating loads. Our CE-certified products are increasingly specified in utility-scale solar projects where reliability under environmental stress is non-negotiable.
Our products undergo rigorous validation at the Xi'an High-voltage Electrical Apparatus Research Institute and the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center. We ensure every unit meets or exceeds international benchmarks.
Compliance with IEC 60282-1, IEC 60644, and IEC 60470 for high-voltage and motor protection.
Meeting DIN 43625 and ANSI C37.42 standards for global interchangeability.
Certified Quality Management System (ISO 9001:2000) ensuring traceability and consistency.
Adherence to VDE 0636 and GB 15166 series for the highest safety ratings.
International buyers seek more than just a product; they seek Supply Chain Resilience. Our factory provides high-volume OEM/ODM capabilities with CE certification, which is a prerequisite for entering the European Economic Area. We solve the procurement pain point of balancing cost-efficiency with uncompromising safety standards.
In modern cities, our Drop-out Fuses and Voltage Transformer Fuses protect the distribution networks of skyscrapers and residential complexes. They ensure that a local fault doesn't lead to a city-wide blackout.
With the rise of Electric Vehicles, the need for high-speed DC protection is paramount. Our EV Fuses are designed to handle the unique surge profiles of fast-charging stations and high-capacity battery packs.
While we vigorously develop new products, we maintain a strict focus on the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system. We can customize new products at any time according to user needs, making us a flexible partner for unique engineering challenges.
Being based in Yueqing gives us access to a world-class electrical supply chain. This translates to lower lead times and competitive pricing for our global clients, without sacrificing the quality of components like porcelain insulators or high-purity silver fuse links.
Our "Shu Rong" brand enjoys a high reputation. Products are exported to Southeast Asia, the Middle East, Africa, and Europe. We understand local grid requirements and provide the necessary documentation for smooth customs and site approvals.
With over 30 years in the industry, we have survived and thrived by adhering to the principle: "Development by science and technology, and survival by quality." We are a partner you can rely on for long-term projects and multi-year supply contracts.
Our factory utilizes state-of-the-art testing equipment to verify every performance indicator. Whether it is a High-Voltage Current-Limiting Fuse for transformer protection or a Zinc Oxide Arrester for lightning protection, the highest technical performance meets the most stringent international standards.
